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Angle sensor

a technology of angle sensor and angle sensor, which is applied in the direction of galvano-magnetic hall-effect device, galvano-magnetic device, instruments, etc., can solve the problems of general availability of magnetic angle sensor commercially available today, and achieve the effect of optimizing shape and siz

Active Publication Date: 2008-07-10
ASM AUTOMATION SENSORIK MESSTECHN GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0016]Thus it is an object of the invention to provide an angle sensor and a sensor unit, formed therewith, which is, on the one hand, optimized in shape and size for a specific exterior configuration (plate shape), and furthermore allows a user, which is independent from interfering magnetic fields being present in the area of application, or not.

Problems solved by technology

To the contrary, the magnetic angle sensors commercially available today are generally not optimized for a specific dimension (diameter or length), but mostly provided block shaped, with dimensions, which are approximately equal in all spatial directions.

Method used

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Examples

Experimental program
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Embodiment Construction

[0072]FIG. 1a shows a sensor unit 100 comprised of an angle sensor 1 and a magnet unit 50, comprising two encoder magnets 50a, b, cut along the axes 10a, b, which are preferably shared by the magnet unit 50 and the angle sensor 1, wherein the encoder is rotatable around its rotation axis 10b, relative to the typically still standing angle sensor 1.

[0073]The magnet unit 50 is thus comprised of an encoder core body 51, typically provided as a symmetrical, in particular rotation symmetrical in top view, circular, e.g. core body 51, from whose backside a not completely illustrated central pinion 52 protrudes by means of which the core body 51 can be inserted into a blind bore hole of another component, or clamped.

[0074]On or in the forward face surface of the core body 51, the actual encoder is mounted, comprised in this case of a pot shaped, encoder shielding 101b, which is also symmetric in top view, in particular rotation symmetric, e.g. circular, which points away with its open side...

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Abstract

In order to provide an angle sensor in an embodiment, which is axially short in particular and on the other hand radially wider, with a functionality that is as good as possible, on the one hand certain shielding measures against interfering magnetic fields are proposed, and on the other hand a certain geometric design is proposed, in particular comprising an intermediary magnet.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to German Patent Application No. 20200700245.9 filed 8 Jan. 2007 and German Patent Application No. 1020070818759.0 filed 20 Apr. 2007.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]Not ApplicableTHE NAMES OF THE PARTIES TO A JOINT RESEARCH AGREEMENT[0003]Not ApplicableINCORPORATION-BY-REFERENCE OF MATERIAL SUBMITTED ON A COMPACT DISC[0004]Not Applicable.BACKGROUND OF THE INVENTION[0005]1. Field of the Invention[0006]The invention relates to a magnetic sensor unit having an angle sensor and an encoder, as they are used in the state of the art as an alternative to potentiometers, particularly comprising a plate-shaped flat embodiment of the angle sensor.[0007]2. Background Art[0008]In such magnetic angle sensors, the rotation angle transmission is performed between the encoder element, which is a magnet in this case, and the sensor element, which is provided in particular in the form of...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G01B7/30
CPCG01D11/245G01D5/08G01D2205/50
Inventor STEINICH, KLAUS MANFREDWIRTH, PETER
Owner ASM AUTOMATION SENSORIK MESSTECHN GMBH
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